Economic growth, increased residential areas, and traffic congestion through the area of Briarcliff Parkway and Route 9 has prompted MoDOT to join the Briarcliff Development Company in creating a safer, more traffic friendly area. Thanks to this partnership, motorists and residents alike will see a full interchange and better intersections for safer, more efficient vehicle and foot traffic, easing congestion and improving traffic flow.

How does this project benefit me?

MoDOT will complete a full access interchange with the addition of exit and entrance ramps at Route 9 and Briarcliff Parkway. This will accommodate traffic, and cut down on travel time by allowing traffic on Briarcliff Parkway to access northbound Route 9, or traffic traveling on southbound Route 9 can exit at Briarcliff Parkway.

In addition, two dual-lane roundabouts on either side of Hwy 9 at Briarcliff Parkway will improve safety and traffic flow at the new interchange.

What is the project schedule?

Construction began in December 2009. All work was originally scheduled to be complete by the end of November 2010; however, unexpected delays have postponed the project into 2011.

Construction has resumed. Northbound Briarcliff traffic is driving on the newly constructed lane of southbound Briarcliff in a two-lane, head-to-head traffic configuration. The ramp from northbound Route 9 to Briarcliff is closed through the end of the project.

This will require additional lane closures and restrictions as crews complete the project. Remaining work includes construction of the northern roundabout, reconstruction for the northbound lanes of Briarcliff Parkway, and the new northbound Route 9 ramp.

All work is scheduled to be complete by August, weather permitting.

How much does this project cost?

Amino Bros. Co., Inc. was awarded a $6.494 million contract. $2.5 million was funded through the American Recovery and Reinvestment Act. The remaining cost of the project will be paid through a cost share between MoDOT and Briarcliff Parkway and Highway 9 TDD (Transportation Development District).